Software Deployment

Hi All

I've created an msp file for Visio 2007 and then created a startup script for the installation to occur on the required pcs. But now every time the pc reboots it installs Visio. I'd much rather install Visio 2007 via msi with an MST. Has anyone been able to do this and if not, how can I stop Visio installing itself every time the pc restarts. The script I have written is "\\servername\Visio 2007\setup.exe" /adminfile "\\servername\Visio 2007\Updates\Visio 2007.msp" Is there something I've left out in this script?

Any suggestions?

Thanks